G4BetheHeitler5DModel.hh

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// $Id: $
//
// -------------------------------------------------------------------
//
// GEANT4 Class header file
//
//
// File name:     G4BetheHeitler5DModel
//
// Authors:
// Igor Semeniouk and Denis Bernard,
// LLR, Ecole polytechnique & CNRS/IN2P3, 91128 Palaiseau, France
//
// Modifications:
// 27-10-17 New class (IgS)
// 19-01-18 version that calculates the pdf in the same way as in the fortran 
//          version (Denis Bernard)
// 04-06-18 Performance optimization of the final state sampling (M. Novak) 
//
// Class Description:
//
// Implementation of gamma convertion to e+e- in the field of a nucleus
//

// -------------------------------------------------------------------
//

#ifndef G4BetheHeitler5DModel_h
#define G4BetheHeitler5DModel_h 1

#include "G4BetheHeitlerModel.hh"

class G4IonTable;

class G4BetheHeitler5DModel : public G4BetheHeitlerModel
{

public:

  explicit G4BetheHeitler5DModel(const G4ParticleDefinition* p = nullptr,
                                 const G4String& nam = "BetheHeitler5D");

  virtual ~G4BetheHeitler5DModel();

  virtual void Initialise(const G4ParticleDefinition*,
        const G4DataVector&) final;

  void SampleSecondaries(std::vector<G4DynamicParticle*>* fvect,
                         const G4MaterialCutsCouple* couple,
                         const G4DynamicParticle* aDynamicGamma,
                         G4double, G4double) final;

  inline void SetVerbose(G4int val) { fVerbose = val; }

private:

  // hide assignment operator
  G4BetheHeitler5DModel& operator=(const G4BetheHeitler5DModel& right) = delete;
  G4BetheHeitler5DModel(const  G4BetheHeitler5DModel&) = delete;

  void BoostG4LorentzVector(const G4LorentzVector& p, const G4LorentzVector& q, 
                            G4LorentzVector& res) const;

  void BoostG4LorentzVector(const G4LorentzVector& p, const G4double qz,
                            const G4double qt, const G4double lffac,
                            const G4double imass, G4LorentzVector& res) const;

  G4double MaxDiffCrossSection(const G4double* par, G4double eZ,
                               G4double e, G4double loge) const;

  G4IonTable* theIonTable;

  G4int  fVerbose;
  G4int  fConversionType;
  G4bool iraw;
};
#endif